26464-8 Leukocytes [#/volume] in Blood

Part Descriptions

LP14419-3   Leukocytes
Leukocytes or white blood cells (WBCs) are immune cells that fight infection, neoplasms and other inflammatory conditions, and mediate allergic responses. There are five types of WBCs normally present in the circulation that are all derived from a similar stem cell in the bone marrow. The five type of WBCs are divided into two groups based on the presence or absence of granules in the cytoplasm. The granulocytes include the neutrophils, basophils and eosinophils. The non-granulocytes include the lymphocytes and the monocytes. The neutrophils fight infection by ingesting and digesting bacteria. Eosinophils and basophils respond to allergic reactions and are capable of ingesting antigen-antibody complexes. Monocytes phagocytose bacteria and release interferon to stimulate the immune system. Lymphocytes are divided into T-cells and B-cells. T-cell immunity is cellular and involves the activation of phagocytes and B-cell immunity uses antibodies to fight infection. Both elevated and low leukocyte counts can be markers of infection and malignancy, and low leukocyte counts are associated with a variety of primary and secondary immunodeficiencies, depending on the WBC type(s) that are out of range. (Mosby's manual of diagnostic and laboratory tests, Kathleen Deska Pagana; Timothy James Pagana, Elsevier St. Louis, Mo ©2010) Source: Regenstrief LOINC

Reference Information

Observation Required in Panel

Required

Type of Entry

Question expects user entry - requires response [Q]

Fully-Specified Name

Component

Leukocytes

Property

NCnc

Time

Pt

System

Bld

Scale

Qn

Method

Basic Attributes

Class

HEM/BC

Type

Laboratory

First Released

Version 2.00

Last Updated

Version 2.73 (MIN)

Change Reason

Changed Order_Obs from 'Observation Only' to fit the current order use cases.

Order vs. Observation

Both

Common Test Rank Get Info

68

Member of these Panels

Member of these Groups Get Info

Language Variants Get Info

Related Names

• #
• ABS
• absolute
• absolutes
• Blood
• Cnt
• Count
• Count/volume
• CT
• HEMATOLOGY/CELL COUNTS
• Leuc
• Leuk
• Leukocyte
• Lkcs
• Number concentration
• Number Concentration (count/vol)
• Point in time
• QNT
• Quan
• Quant
• Quantitative
• Random
• UniversalLabOrders
• WB
• WBC
• WBCs
• White blood cell
• White blood cells
• Whole blood

Example Units

30385-9 Erythrocyte [DistWidth] in Blood

Term Description

The RDW-CV is the ratio of the variation in width to the mean width ot the RBC volume distribution curve taken at +/- 1CV.

Part Descriptions

LP16699-8   Erythrocyte
Erythrocytes or red blood cells (RBCs) are the cells in the circulation that carry oxygen to and remove carbon dioxide from the tissues throughout the body. They are produced in the bone marrow in response to erythropoietin where they transition through six stages over a seven day period. When they are released into the circulation, their nucleus has been extruded and they measure 6-8 microns in diameter. The lifespan of RBCs is about 120 days. When the RBC ages the cell membrane becomes less pliable and tears as they cell travels through the micro vessels of the body. The damaged RBCs are removed from the circulation by the spleen. Variations in number, shape and size of RBCs are indicative of many diseases and disorders. There are many factors that may lead to decreased numbers of RBCs including hemorrhage, hemolysis, iron or vitamin deficiency, marrow failure and more. Larger than normal RBCs may be indicative of liver disease while smaller than normal RBCs are seen in thalassemias and other anemias.(Mosby's manual of diagnostic and laboratory tests, Kathleen Deska Pagana; Timothy James Pagana, Elsevier St. Louis, Mo ©2010) Source: Regenstrief LOINC

Observation Required in Panel

Optional

Type of Entry

Question expects user entry - requires response [Q]

Fully-Specified Name

Component

Erythrocyte

Property

DistWidth

Time

Pt

System

Bld

Scale

Qn

Method

Basic Attributes

Class

HEM/BC

Type

Laboratory

First Released

Version 2.04

Last Updated

Version 2.81 (NAM)

Change Reason

Release 2.79: COMPONENT: Triggered by coll w SCT: component that the description is property like as in Color, Appearance, Osmolality have changed to Component: Observation, and Property: Color, or Appearance, or Osmolality, so forth…;

Order vs. Observation

Observation

Common Test Rank Get Info

96

Formula (Readable)

SD of red cell size distribution/MCV

Member of these Panels

Language Variants Get Info

Related Names

• Blood
• Discocyte
• Erc
• Erythrocytes
• HEMATOLOGY/CELL COUNTS
• Point in time
• QNT
• Quan
• Quant
• Quantitative
• Random
• RBC
• Red blood cell
• Red blood cells
• Red blood corpuscle
• Red blood corpusles
• Red cell
• Red cells
• WB
• Whole blood

Example Units

26453-1 Erythrocytes [#/volume] in Blood

Part Descriptions

LP14304-7   Erythrocytes
Erythrocytes or red blood cells (RBCs) are the cells in the circulation that carry oxygen to and remove carbon dioxide from the tissues throughout the body. They are produced in the bone marrow in response to erythropoietin where they transition through six stages over a seven day period. When they are released into the circulation, their nucleus has been extruded and they measure 6-8 microns in diameter. The lifespan of RBCs is about 120 days. When the RBC ages the cell membrane becomes less pliable and tears as they cell travels through the micro vessels of the body. The damaged RBCs are removed from the circulation by the spleen. Variations in number, shape and size of RBCs are indicative of many diseases and disorders. There are many factors that may lead to decreased numbers of RBCs including hemorrhage, hemolysis, iron or vitamin deficiency, marrow failure and more. Larger than normal RBCs may be indicative of liver disease while smaller than normal RBCs are seen in thalassemias and other anemias.(Mosby's manual of diagnostic and laboratory tests, Kathleen Deska Pagana; Timothy James Pagana, Elsevier St. Louis, Mo ©2010) Source: Regenstrief LOINC

Observation Required in Panel

Required

Type of Entry

Question expects user entry - requires response [Q]

Fully-Specified Name

Component

Erythrocytes

Property

NCnc

Time

Pt

System

Bld

Scale

Qn

Method

Basic Attributes

Class

HEM/BC

Type

Laboratory

First Released

Version 2.00

Last Updated

Version 2.73 (MIN)

Order vs. Observation

Observation

Common Test Rank Get Info

99

Member of these Panels

Member of these Groups Get Info

Language Variants Get Info

Related Names

• #
• ABS
• absolute
• absolutes
• Blood
• Cnt
• Count
• Count/volume
• CT
• Discocytes
• Erthrocyte
• Erythrocyte
• HEMATOLOGY/CELL COUNTS
• Number concentration
• Number Concentration (count/vol)
• Point in time
• QNT
• Quan
• Quant
• Quantitative
• Random
• RBC
• RBCS
• Red blood cell
• Red blood cells
• Red blood corpuscle
• Red blood corpusles
• Red cell
• Red cells
• WB
• Whole blood

Example Units

718-7 Hemoglobin [Mass/volume] in Blood

Reference Information

Observation Required in Panel

Required

Type of Entry

Question expects user entry - requires response [Q]

Fully-Specified Name

Component

Hemoglobin

Property

MCnc

Time

Pt

System

Bld

Scale

Qn

Method

Basic Attributes

Class

HEM/BC

Type

Laboratory

First Released

Version 1.0

Last Updated

Version 2.73 (MIN)

Order vs. Observation

Both

Common Test Rank Get Info

17

Member of these Panels

Member of these Groups Get Info

Language Variants Get Info

Related Names

• Blood
• Haemoglobin
• Hb
• HEMATOLOGY/CELL COUNTS
• Hgb
• Level
• Mass concentration
• Point in time
• QNT
• Quan
• Quant
• Quantitative
• Random
• UniversalLabOrders
• WB
• Whole blood

Example Units

Related Codes

20570-8 Hematocrit [Volume Fraction] of Blood by calculation

Part Descriptions

LP16699-8   Erythrocyte
Erythrocytes or red blood cells (RBCs) are the cells in the circulation that carry oxygen to and remove carbon dioxide from the tissues throughout the body. They are produced in the bone marrow in response to erythropoietin where they transition through six stages over a seven day period. When they are released into the circulation, their nucleus has been extruded and they measure 6-8 microns in diameter. The lifespan of RBCs is about 120 days. When the RBC ages the cell membrane becomes less pliable and tears as they cell travels through the micro vessels of the body. The damaged RBCs are removed from the circulation by the spleen. Variations in number, shape and size of RBCs are indicative of many diseases and disorders. There are many factors that may lead to decreased numbers of RBCs including hemorrhage, hemolysis, iron or vitamin deficiency, marrow failure and more. Larger than normal RBCs may be indicative of liver disease while smaller than normal RBCs are seen in thalassemias and other anemias.(Mosby's manual of diagnostic and laboratory tests, Kathleen Deska Pagana; Timothy James Pagana, Elsevier St. Louis, Mo ©2010) Source: Regenstrief LOINC

Observation Required in Panel

Required

Type of Entry

Question expects user entry - requires response [Q]

Fully-Specified Name

Component

Erythrocyte/Blood

Property

VFr

Time

Pt

System

Bld

Scale

Qn

Method

Calculated

Basic Attributes

Class

HEM/BC

Type

Laboratory

First Released

Version 1.0m

Last Updated

Version 2.79 (NAM)

Change Reason

Release 2.79: COMPONENT: Triggered by Coll w SCT:Hematocrit as a component is not an adequate description for a ratio, therefore Hematocrit is kept as a synonym, and the actual component is expressed as it should be:Erythrocyte/blood;

Order vs. Observation

Both

Common Test Rank Get Info

40

Member of these Panels

Language Variants Get Info

Related Names

• Blood
• Calc
• Calculation
• Discocyte
• Erc
• Erythrocytes
• HEMATOLOGY/CELL COUNTS
• Percent
• Point in time
• QNT
• Quan
• Quant
• Quantitative
• Random
• RBC
• Red blood cell
• Red blood cells
• Red blood corpuscle
• Red blood corpusles
• Red cell
• Red cells
• UniversalLabOrders
• Volfr
• Volume fraction
• WB
• Whole blood

Example Units

Related Codes

30428-7 MCV [Entitic mean volume] in Red Blood Cells

Reference Information

Observation Required in Panel

Required

Type of Entry

Question expects user entry - requires response [Q]

Fully-Specified Name

Component

Observation

Property

EntMeanVol

Time

Pt

System

RBC

Scale

Qn

Method

Basic Attributes

Class

HEM/BC

Type

Laboratory

First Released

Version 2.04

Last Updated

Version 2.81 (MIN)

Change Reason

Release 2.81: SHORTNAME: "MCV RBC" as the short name would clearly indicate that the test is related to the mean corpuscular volume of red blood cells, not the count; Release 2.79: COMPONENT: Triggered by coll w SCT: component that the description is property like as in Color, Appearance, Osmolality have changed to Component: Observation, and Property: Color, or Appearance, or Osmolality, so forth…; Previous Releases: Changed Short Name from 'Erythrocyte mean corpuscular volume' to 'MCV' for succinctness.

Order vs. Observation

Observation

Common Test Rank Get Info

97

Formula (Readable)

HCTx1000/RBC (x10^12/L)

Member of these Panels

Language Variants Get Info

Related Names

• Erythrocytes
• HEMATOLOGY/CELL COUNTS
• Point in time
• QNT
• Quan
• Quant
• Quantitative
• Random
• Red blood cells
• Red blood corpusles

Example Units

28539-5 MCH [Entitic mass]

Observation Required in Panel

Required

Type of Entry

Question expects user entry - requires response [Q]

Fully-Specified Name

Component

Hemoglobin

Property

EntMass

Time

Pt

System

RBC

Scale

Qn

Method

Basic Attributes

Class

HEM/BC

Type

Laboratory

First Released

Version 2.00

Last Updated

Version 2.79 (NAM)

Change Reason

Release 2.79: COMPONENT: Triggered by Coll w SCT: Precoordination of the component with Property: mean concentration; the decision was to post coordinate and separate component and property; Previous Releases: Changed Short name 'Erythrocyte mean corpuscular hemoglobin' to 'MCH' for succinctness.

Order vs. Observation

Observation

Common Test Rank Get Info

104

Formula (Readable)

Hgb (g/L)/RBC(x10^12/L)

Member of these Panels

Language Variants Get Info

Related Names

• Entitic mass
• Erythrocytes
• Haemoglobin
• Hb
• HEMATOLOGY/CELL COUNTS
• Hgb
• Point in time
• QNT
• Quan
• Quant
• Quantitative
• Random
• Red blood cells
• Red blood corpusles

Example Units

28540-3 MCHC [Entitic Mass/volume] in Red Blood Cells

Observation Required in Panel

Required

Type of Entry

Question expects user entry - requires response [Q]

Fully-Specified Name

Component

Hemoglobin

Property

EntMCnc

Time

Pt

System

RBC

Scale

Qn

Method

Basic Attributes

Class

HEM/BC

Type

Laboratory

First Released

Version 2.00

Last Updated

Version 2.79 (NAM)

Change Reason

Release 2.79: COMPONENT: Triggered by Coll w SCT: Precoordination of the component with Property: mean concentration; the decision was to post coordinate and separate component and property; Previous Releases: Changed Short name 'Erythrocyte mean corpuscular hemoglobin concentration' to 'MCHC' for succinctness.

Order vs. Observation

Observation

Common Test Rank Get Info

113

Formula (Readable)

Hgb (g/L)/HCT

Member of these Panels

Language Variants Get Info

Related Names

• Erythrocytes
• Haemoglobin
• Hb
• HEMATOLOGY/CELL COUNTS
• Hgb
• Point in time
• QNT
• Quan
• Quant
• Quantitative
• Random
• Red blood cells
• Red blood corpusles

Example Units

30385-9 Erythrocyte [DistWidth] in Blood

Term Description

The RDW-CV is the ratio of the variation in width to the mean width ot the RBC volume distribution curve taken at +/- 1CV.

Part Descriptions

LP16699-8   Erythrocyte
Erythrocytes or red blood cells (RBCs) are the cells in the circulation that carry oxygen to and remove carbon dioxide from the tissues throughout the body. They are produced in the bone marrow in response to erythropoietin where they transition through six stages over a seven day period. When they are released into the circulation, their nucleus has been extruded and they measure 6-8 microns in diameter. The lifespan of RBCs is about 120 days. When the RBC ages the cell membrane becomes less pliable and tears as they cell travels through the micro vessels of the body. The damaged RBCs are removed from the circulation by the spleen. Variations in number, shape and size of RBCs are indicative of many diseases and disorders. There are many factors that may lead to decreased numbers of RBCs including hemorrhage, hemolysis, iron or vitamin deficiency, marrow failure and more. Larger than normal RBCs may be indicative of liver disease while smaller than normal RBCs are seen in thalassemias and other anemias.(Mosby's manual of diagnostic and laboratory tests, Kathleen Deska Pagana; Timothy James Pagana, Elsevier St. Louis, Mo ©2010) Source: Regenstrief LOINC

Observation Required in Panel

Optional

Type of Entry

Question expects user entry - requires response [Q]

Fully-Specified Name

Component

Erythrocyte

Property

DistWidth

Time

Pt

System

Bld

Scale

Qn

Method

Basic Attributes

Class

HEM/BC

Type

Laboratory

First Released

Version 2.04

Last Updated

Version 2.81 (NAM)

Change Reason

Release 2.79: COMPONENT: Triggered by coll w SCT: component that the description is property like as in Color, Appearance, Osmolality have changed to Component: Observation, and Property: Color, or Appearance, or Osmolality, so forth…;

Order vs. Observation

Observation

Common Test Rank Get Info

96

Formula (Readable)

SD of red cell size distribution/MCV

Member of these Panels

Language Variants Get Info

Related Names

• Blood
• Discocyte
• Erc
• Erythrocytes
• HEMATOLOGY/CELL COUNTS
• Point in time
• QNT
• Quan
• Quant
• Quantitative
• Random
• RBC
• Red blood cell
• Red blood cells
• Red blood corpuscle
• Red blood corpusles
• Red cell
• Red cells
• WB
• Whole blood

Example Units

76069-4 Erythrocytes.hypochromic/Erythrocytes in Blood by Automated count

Term Description

Automated estimation of percent of hypochromic red blood cells (% HYPO). The %HYPO parameter indicates the percent of cells that have a cellular hemoglobin concentration less than 28 g/dL and is derived from the RBC hemoglobin concentration histogram. This term was based on, but not limited in use to, the ADVIA 120 Hematology System.

Part Descriptions

LP183492-0   Erythrocytes.hypochromic
Hypochromia (as in hypochromic anemia) is an abnormal decrease in the hemoglobin content of the erythrocytes and microscopically appears as increasing size in the RBC zone of central pallor. Source: Regenstrief LOINC

Observation Required in Panel

Optional

Fully-Specified Name

Component

Erythrocytes.hypochromic/Erythrocytes

Property

NFr

Time

Pt

System

Bld

Scale

Qn

Method

Automated count

Basic Attributes

Class

HEM/BC

Type

Laboratory

First Released

Version 2.50

Last Updated

Version 2.79 (NAM)

Change Reason

Release 2.79: COMPONENT: Triggered by Coll w SCT: This is a specific fraction case where the denominator is percentage or /100. Because the logic is that the percentage piece is captured by Property: NFr (Numeric Fraction), and by Unit: %, therefore, it is redundant to include "100" in the component;

Order vs. Observation

Both

Formula (Readable)

%HYPO RBC = 100 x Cell Count in RBC HC histogram <28g dL/Total Cell Count in RBC HC histogram

Member of these Panels

Language Variants Get Info

Related Names

• %HYPO
• Auto
• Automated detection
• Blood
• Discocytes
• Elec
• Elect
• Electr
• Erthrocyte
• Erythrocyte
• HEMATOLOGY/CELL COUNTS
• HypochromASia
• Number fraction
• Percent
• Point in time
• QNT
• Quan
• Quant
• Quantitative
• Random
• RBC
• RBCS
• Red blood cell
• Red blood cells
• Red blood corpuscle
• Red blood corpusles
• Red cell
• Red cells
• WB
• Whole blood

Example Units

76090-0 Erythrocytes.hyperchromic/Erythrocytes in Blood by Automated count

Term Description

Automated estimation of percent of hyperchromic red blood cells (% HYPER). The %HYPER parameter indicates the percent of cells that have a cellular hemoglobin concentration greater than 41 g/dL and is derived from the RBC hemoglobin concentration histogram. This term was based on, but not limited in use to, the ADVIA 120 Hematology System.

Part Descriptions

LP183493-8   Erythrocytes.hyperchromic
Hyperchromia (or hyperchromasia) is an abnormal increase in the hemoglobin content of the erythrocytes. Hyperchromic RBCs have a decreased central pallor, but these cells are usually reported in morphological terms (as spherocytes). Source: Regenstrief LOINC

Observation Required in Panel

Optional

Fully-Specified Name

Component

Erythrocytes.hyperchromic/Erythrocytes

Property

NFr

Time

Pt

System

Bld

Scale

Qn

Method

Automated count

Basic Attributes

Class

HEM/BC

Type

Laboratory

First Released

Version 2.50

Last Updated

Version 2.79 (NAM)

Change Reason

Release 2.79: COMPONENT: Triggered by Coll w SCT: This is a specific fraction case where the denominator is percentage or /100. Because the logic is that the percentage piece is captured by Property: NFr (Numeric Fraction), and by Unit: %, therefore, it is redundant to include "100" in the component;

Order vs. Observation

Both

Formula (Readable)

%HYPER RBC = 100 x Cell Count in RBC HC histogram > 41g dL/Total Cell Count in RBC HC histogram

Member of these Panels

Language Variants Get Info

Related Names

• %HYPER
• Auto
• Automated detection
• Blood
• Discocytes
• Elec
• Elect
• Electr
• Erthrocyte
• Erythrocyte
• HEMATOLOGY/CELL COUNTS
• Hyperchromasia
• Number fraction
• Percent
• Point in time
• QNT
• Quan
• Quant
• Quantitative
• Random
• RBC
• RBCS
• Red blood cell
• Red blood cells
• Red blood corpuscle
• Red blood corpusles
• Red cell
• Red cells
• Spherocyte
• WB
• Whole blood

Example Units